police say ciancia killed one tsa screener and wounded two others and a passenger. some are calling for better security at tsa checkpoints. >> part of that investigation will be a review of the security measures that were in place not only at l.a.x. but i think a review of the security arrangements that exist in other airports as well. >> police officers shot ciancia four times. he's heavily sedated following surgery for his wounds and is currently under 24-hour guard. >>> a new study from uc berkeley raises concerns about the outsourcing of airport workers. according to the study, the share of airport workers outsourced to contractors grew from 19% in 2001 to 26% by 2011. during the same period, airport workers saw their hourly wages fall by an average of 15%. the study says the airport workers declining pay affects airport efficiency, safety and security. the study was financed by the service employees international union. >>> stricter gun control laws may be coming to sunnyvale if voters approve a measure tomorrow. janine de la vega tells us why it's drawing cont